It’s the best time of year! The first baby bison of spring was recently spotted at Wind Cave National Park in South Dakota. Calves are orange-red in color, earning them the nickname “red dogs.” They can walk within 3 hours of birth, and before long, nursery groups of calves will romp around together, never far from their mothers’ watchful eyes. Check out more bison facts: http://on.doi.gov/1Oc7VXg Photo by National Park Service.